[Zarr-Support] Add Zarr v2 reader support - #821

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zarr-support/4-zarr2-reader

Commits on Jul 4, 2026

[Zarr-Support] Transplant zarr2 reader onto main-based branch
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[Zarr-Support] Clean up parser helper changes
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Improve read performance
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fix: propagate read errors instead of swallowing them

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test: add generated Zarr fixture and test helper utilities

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test: rewrite Zarr unit tests to use generated fixture

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ci: wire Zarr wrapper and Python deps into CI; add user-facing setup

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test: extend Zarr fixture and tests for 1-D, integer, and string datasets

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test: add compound dataset fixture and test; bump wrapper pin to phase-7

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fix: simplify fixture and use electrodes/id for integer dtype test

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